Force 8-digit serial number

Fixes #149. Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
2025-05-19 10:01:07 +02:00
parent a61bb91824
commit 91aaee5beb
2 changed files with 2 additions and 0 deletions
--- a/src/fido/management.c
+++ b/src/fido/management.c
@@ -85,6 +85,7 @@ int man_get_config() {
    res_APDU[res_APDU_size++] = TAG_SERIAL;
    res_APDU[res_APDU_size++] = 4;
    memcpy(res_APDU + res_APDU_size, pico_serial.id, 4);
+    res_APDU[res_APDU_size] &= ~0xFC; // Force 8-digit serial number
    res_APDU_size += 4;
    res_APDU[res_APDU_size++] = TAG_FORM_FACTOR;
    res_APDU[res_APDU_size++] = 1;